millenary millenary /ˈmɪlɪneɪri/

adjective

1. Relating to or consisting of 1000  ( millenary )
   relating to or consisting of 1000
   
2. Of or relating to the doctrine of the millennium  ( millenary )
   of or relating to the doctrine of the millennium
   

noun

1. A sum or aggregate of one thousand (especially one thousand years)  ( millenary )
   a sum or aggregate of one thousand (especially one thousand years)
   
2. A span of 1000 years  ( millenary , millennium )
   a span of 1000 years
    The new millennium began on January 1st, 2000
   The new millennium began on January 1st, 2000
   
3. The 1000th anniversary (or the celebration of it)  ( millenary , millennium )
   the 1000th anniversary (or the celebration of it)